#include <array>
#include <compare>
#include <iostream>

int main() {
    int i{12};
    std::cout << ((i <=> 10) == std::strong_ordering::equal) << std::endl;
    // std::array<int, 3> arr{12, 23, 22};
    // auto [x, y, z]{arr};
    for (std::array arr{1, 2, 3, 4}; int i : arr) {
        std::cout << i << ",";
    }
    int *const a{&i};
    const int *b{a};
    // a=2;
    // b = a;
    std::cout << "\n" << *a << "\n" << b;
    std::cout << std::endl;
}